This fetuin-A "doublet" may represent variable post-translation modifications (such as glycosylation and/or phosphorylation), and could be separated from other contaminating proteins by gel filtration (Fig. 4A, left panel), and from each other by ion-exchange chromatography (Fig. 4A, right panel).
This stringent phylotype definition at 99% cut-off was used in part because evidence suggests that bacteria with nearly-identical 16S rRNA sequences may represent variable genotypes and different species [ 29].
While the risk factors in this study require validation, they may represent variables that can be considered by clinicians when deciding which individuals may benefit the most from targeted medical or educational interventions to improve glycemic control.
Hence, although the surface exposed region, analysed as a whole, appears to be naturally under negative selection (Ka/Ks < 1), the three main variable regions might evolve towards the accumulation of higher non synonymous changes, and may thus represent variable evolving domains.
In this kind of surveillance, a single sewage sample may represent a variable number of people depending on the sampling site and size of the population.
First, some of these sequences may represent highly variable regions of transcripts (hence, difficult to annotate with similarity searches), either because they are not translated (UTRs) or because they do not code for functionally constrained protein domains.
Similarly, in another experiment, the apparent coding of time by neurons in this parietal region may represent decision variables.
Both of these may represent confounding variables, which if generalisable to other patients in the acupressure wristband trial, could have serious implications for the results of the trial, and may be a factor in the trial finding the wristbands to be ineffective [ 17].
For economic analysis, the value of resources that represent variable or discretionary costs, as recorded by cost-accountants, may well represent the opportunity cost of the resources.
The presence of ovarian endometrioma(s) may represent a confounding variable in assessing IVF outcome.
Accordingly, it has been suggested that the modulation of β2GPI tissue distribution by inflammatory stimuli may represent an additional variable able to affect the ability of the antibodies to induce the vascular manifestations of the syndrome [ 16, 89].
